unmercifully
- r without pity; in a merciless manner
- He has unmercifully turned the screws on Hamas-controlled Gaza.
- He alternately froze, sweat unmercifully, gasped for breath in the 12,000-ft.
- He hounded and beat the boy so unmercifully that in the Kremlin one night in the late 1920s, Yakov tried to shoot himself.